At N>=2 a battery at or under its own peak reserve is held: it gives nothing for the peak (weight 0 while the site gives) and the guard's need is placed on the live, non-refusing batteries above theirs. The guard is floor-limited, and alarms, only when those cannot hold the limit at full power for ALARM_HOLD_S. The peak alarms no longer read "Not ready" or hold the Home page at 0 W, because control keeps running. N=1 is byte-identical. DECISIONS/SAFETY-87-guard-uses-able-batteries.md. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_019DBUfvndgHwaV339Fvd2gr